The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 25, 2005
Filed:
Nov. 15, 2002
Jörg Talbiersky, Dorsten, DE;
Edgar Fuhrmann, Castrop-Rauxel, DE;
Wolfgang Brüggemann, Castrop-Rauxel, DE;
Jörg Talbiersky, Dorsten, DE;
Edgar Fuhrmann, Castrop-Rauxel, DE;
Wolfgang Brüggemann, Castrop-Rauxel, DE;
Rutgers Chemicals AG, Castrop-Rauxel, DE;
Abstract
In a method for the production of o-alkyl phenols by conversion of phenol with an alkanol at elevated temperature in the gas phase in the presence of a metal catalyst, the conversion takes place in at least two stages wherein the alkanol/phenol molar ratio in each reaction stage is set to a value of approximately ≦0.4; a clear increase in the selectivity for the o-alkyl phenol is obtained.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile